EP 0418634 A1 19910327 - Improved protective coating processes for zinc coated steel.
Title (en)
Improved protective coating processes for zinc coated steel.
Title (de)
Verbesserte Schutzschichtverfahren für Zink beschichteten Stahl.
Title (fr)
Procédés d'amélioration de revêtement de protection pour de l'acier recouvert de zinc.
Publication
Application
Priority
US 40423689 A 19890907
Abstract (en)
The cold impact resistance and corrosion resistance of objects having a zinciferous metal surface successively coated with a zinc phosphate conversion coating and an organic surface coating can be improved by utilizing sufficient manganese ion in the solution used for zinc phosphating to assure the presence of at least 3 % by weight manganese in the phosphate conversion coating layer formed. Sufficient phosphating to achieve good bonds to organic surface coatings can be accomplished in as little as 5 seconds.
IPC 1-7
IPC 8 full level
B32B 15/08 (2006.01); C23C 22/12 (2006.01); C23C 22/18 (2006.01); C23C 22/36 (2006.01)
CPC (source: EP US)
C23C 22/184 (2013.01 - EP US); C23C 22/365 (2013.01 - EP US); C23C 22/83 (2013.01 - EP US)
Citation (search report)
- [X] EP 0106459 A1 19840425 - NIPPON PAINT CO LTD [JP]
- [A] EP 0287133 A1 19881019 - METALLGESELLSCHAFT AG [DE]
- [Y] CHEMICAL ABSTRACTS, vol. 101, no. 2, July 1984, page 221, abstract no. 10969r, Columbus, Ohio, US; & JP-A-59 20 473 (NIPPON PAINT CO., LTD) 02-02-1984
- [A] METALL OBERFLÄCHE, vol. 42, no. 6, June 1988, pages 301-305, Munich, DE; W.A. ROLAND et al.: "Manganmodifizierte Zinkphosphatüberzüge als Haftgrund für moderne Lackierungen"
- [A] PATENT ABSTRACTS OF JAPAN, vol. 9, no. 180 (C-293)[1903], 25th July 1985; & JP-A-60 50 175 (NIPPON PAINT K.K.) 19-03-1985
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0418634 A1 19910327; EP 0418634 B1 19940720; AT E108837 T1 19940815; AU 6218990 A 19910314; AU 630230 B2 19921022; BR 9004439 A 19910910; CA 2024793 A1 19910308; CA 2024793 C 20001114; DE 69010811 D1 19940825; DE 69010811 T2 19950202; JP 3339682 B2 20021028; JP H0397875 A 19910423; MX 166337 B 19921229; NZ 235157 A 19920728; US 5082511 A 19920121
DOCDB simple family (application)
EP 90116928 A 19900904; AT 90116928 T 19900904; AU 6218990 A 19900906; BR 9004439 A 19900906; CA 2024793 A 19900906; DE 69010811 T 19900904; JP 23688490 A 19900906; MX 2222890 A 19900904; NZ 23515790 A 19900903; US 40423689 A 19890907